“What they’re selling is metrics. It’s no longer enough to imagine our way to a better state of body or mind. We must now chart our progress, count our steps, log our sleep rhythms, tweak our diets, record our negative thoughts—then analyze the data, recalibrate, and repeat.” The New Yorker’s Alexandra Schwartz on what the self-help gurus and their critics reveal about our times: Improving Ourselves to Death. (My self-esteem has improved dramatically since I attached my FitBit to my dog’s leg.)